【多选题】低合金高强度结构钢是( )高强度的钢。
E.
与相同含碳量的碳素结构钢比具有强度高,塑性、韧性好
【单选题】低合金钢有18种钢号,钢号前面的两位数字表示其平均含碳量的百分数,后面的元素符号表示该种合金,合金含量以百分数表示。当该元素平均含量小于( )%时,不标明含量;当其平均含量大于( )%或( )%时,则在元素后面标出2、3等字。
【简答题】What do we need to notice when we travel? please list the things we need to pay attention to when we travel according to your experience.
【多选题】关于围婚期保健,正确的是()
A.
围绕结婚前后,为保障双方及下一代健康即进行的保健服务
B.
主要内容为婚前医学检查,婚前卫生指导和婚前卫生咨询
C.
目的是保证健康的婚配,避免近亲问题或遗传病患者之间的婚配或生育
【判断题】We need to speak further about this.This sentence means we need to discuss the problem more.
【简答题】If we want to become smart thinkers, we may need to reflect on our own views and positions. We need to ask ourselves questions constantly. What kind of questions do we need to ask ourselves?
【判断题】We need to speak further about this. This sentence means we need to discuss the problem more.